The Second COVID-19 Wave: Collateral Impact on Patients of Liver Disease
Liver DiseasesHospital record of the patients of liver disease admitted from April-May 2021 and April-May 2019 will be reviewed. Patients will be analyzed and compared for the demographic characteristics, severity of liver disease at time of admission and outcome in form of survival or mortality, liver transplantation rates in the two time periods and the subsequent 30 d and 90 day readmission rate. Monitoring and assessment: Hospital records of all patients of liver disease needing admission during the April-May 2019 and 2021, but without active COVID-19 infection, will be reviewed. Patients will be analyzed and compared for the demographic characteristics, severity of liver disease at time of admission and outcome in form of survival or mortality, liver transplantation rates in the two time periods and 30 d and 90 d readmission rate.
Contrast Enhanced Ultrasound (CEUS) in Atypical Liver Nodules in Patients With Chronic Liver Disease...
Hepatocellular CarcinomaThe present study aims to investigate the role of CEUS in evaluating liver lesions with atypical characteristics on contrast-enhanced CT or MRI. All patients enrolled in the study underwent contrast-enhanced ultrasound. Based on CEUS characteristics, atypical nodules will be categorized according to CEUS LI-RADS classification.
A Prospective Study to Monitor Liver Diseases Dynamically by Ultrasound Viscoelasticity
CirrhosisLiver DiseasesThe accuracy of ultrasound elastography for assessing liver fibrosis by measuring liver stiffness (elastic modulus) is better than traditional method. Elastography has certain advantage such as non-invasive, simple, real-time and it has been recommended by clinical guidelines. However, some chanllenging scientific problems showed up with further research and clinical practice. Firstly, present elastography machines can only calculate liver stiffness from shear wave speed or elastic modulus but ignore other physical characteristics such as tissue viscosity. So far, present technique simply assume liver as an idealized model with isotropic elasticity to assess liver fibrosis while liver is actually anisotropic and viscoelastic. What's more, theoretically, there are not only different solid state structures such as cell organization and vessel but also flowing liquid such as blood and bile. Thus, ignoring viscosity and evaluating elasticity only is unreasonable. In the other hand, a number of confounding factors have been found to influence liver stiffness measurement by elastography. Different pathological chang of liver including inflammation, necrosis, cholestasis and inhomogeneity among the individuals such as obesity, ascites, et,al. will decrease the accuracy of liver stiffness measurement and liver fibrosis staging by elastography. In fact, liver fibrosis is a dynamic process. Liver fibrosis is a reaction of compensation and repair for inflammation and necrosis as well as a contributing factor for liver damage. This dynamic process constitutes the common characteristic of chronic liver disease and result in the complicated biological mechanical characteristics of liver. In consequence, how to measure liver viscosity and elasticity respectively, and to evaluate liver fibrosis stage and Inflammation degree accurately during the complicated and dynamic pathological process is the key scientific problem demanding solution, which is also the urgent requirement of related fundamental research and clinical practice. Therefore, this project plan to apply LOGIQ E viscoelastography machine as research tool, rat liver fibrosis model and rat liver failure model as research object to investigate the correlation between liver viscoelastography measurement and liver fibrosis stage and Inflammation degree. The investigators also aim to assess the feasibility of using ulstrasound viscoelastography to evaluate liver fibrosis stage and Inflammation degree dynamically.
Use of Indocyanine Green Cholangiography and Methylene Blue to Detect Postoperative Biliary Fistula...
Liver DiseaseThe aim of the present study is to evaluate whether the use of indocyanine green fluorescent cholangiography is responsible in a decrease of biliary fistula's rate in patients with liver diseases requiring liver resection.
Evaluation of Liver Disease With Elastography Measurements in Patients Undergoing Liver Transplant...
Liver TransplantationThe purpose of the study is to compare ultrasound measurements of the liver obtained prior to surgery on the skin to measurements obtained during surgery directly on the diseased liver. The objective is to determine if ultrasounds of the liver on the skin can provide accurate measurements of disease of the liver to provide an alternative option to liver biopsies.
Omegaven Expanded Access Protocol
Parenteral Nutrition Associated Liver DiseaseOmegaven is an intravenous fat emulsion (IFE) comprised of omega-3 fatty acids derived from fish oil. It will be used in an open label compassionate use treatment protocol, as an alternative to soybean oil (omega-6), as the sole IFE source of parenteral nutrition in an effort to reduce and/or reverse parenteral nutrition associated liver disease. The study will evaluate the safety and efficacy of Omegaven use in pediatric patients with PN dependence and PNALD.
HIV Accelerated Liver Disease in Uganda
FibrosisBackground: - Liver disease is a leading cause of death in people who have the human immunodeficiency virus (HIV). It especially affects those who have both HIV and hepatitis B or C viruses. Most research on HIV-related liver disease has been conducted in North America and Europe. However, HIV-related liver disease in Uganda and other African nations may involve other diseases that are not common in the West, and may not involve hepatitis B or C. Researchers want to study HIV-related liver disease in Uganda to learn more about the differences between Western and African trends of this disease. Objectives: - To study HIV-related liver disease in rural Uganda. Eligibility: Individuals at least 18 years of age who were tested for possible liver disease. Some participants will have HIV infection; others will be uninfected. All participants will be from rural areas of Uganda. Design: Participants will have at least two study visits. Participants will have a physical exam and medical history. They will complete a questionnaire about health and quality of life. Blood, urine, and stool samples will be collected. Participants will also have a liver scan to check for liver scarring, and an ultrasound to take images of the liver. Participants who may have liver disease will visit a local hospital for more tests. A liver biopsy will be performed to collect liver tissue samples.
Is Access to Liver Transplantation Similar in Alcoholic or Not Patients?
Inpatient With End Stage Liver DiseaseThe purpose of this study is to determine whether there are reasons other than medical reasons that could limit access to liver transplantation in alcoholic patients.
Half-life of Plasma Phytosterols in Preterm Infants on Parenteral Nutrition
Liver DiseasesThe purpose of this study is to determine plasma phytosterols half-lives in preterm infants who received intravenous soy oil-based lipid emulsions.
Controlled Attenuation Parameter (CAP) in Liver Allografts
Liver TransplantLiver Steatosis3 moreThe primary aim is to determine the accuracy of CAP in the quantification of liver steatosis using liver biopsies as reference. Secondarily, investigators will correlate transient elastography (TE) and CAP results, analyze possible associations between CAP/TE and post-liver transplant (LT) clinical outcomes, and evaluate the change in CAP after LT. The study aims to include as many donors as needed to achieve at least 120 transplanted liver allografts.